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Project 3.2: Exoplanet atmospheres at high spectral resolution

Project 3.2 is led by Christophe Lovis. This project focuses on the observational study of exoplanet atmospheres by means of ground-based high-resolution spectroscopy. The goal is to probe the chemical composition and atmospheric structure of a variety of objects, ranging from hot Jupiters to temperate Earth-like planets. High-resolution spectroscopy circumvents the practical difficulties caused by Earth’s atmosphere and rivals space-based spectrophotometry in terms of exoplanet characterisation potential. It reveals the physical properties of atmospheres by resolving spectral line profiles, which constrain chemical abundances, temperature profiles, global circulation patterns, and planet spin rate. Two main approaches will be pursued in this project: transmission spectroscopy of transiting exoplanets and spatially-resolved spectroscopy of very nearby (non-transiting) exoplanets using extreme adaptive optics (AO).

High-resolution transmission spectrum of the warm Neptune HAT-P-11b obtained with CARMENES around the near-infrared metastable helium triplet. Absorption by the planet continuum has been removed. A significant excess absorption from an extended upper atmosphere of helium is detected at 21 sigma. The transmission spectrum (in black) is plotted in the planet rest frame, and is averaged over two independent epochs (in blue and orange). Our best fit model is in red.

Authors:
Bayliss, Daniel; Gillen, Edward; Eigmüller, Philipp; McCormac, James; Alexander, Richard D.; Armstrong, David J.; Booth, Rachel S.; Bouchy, François; Burleigh, Matthew R.; Cabrera, Juan; Casewell, Sarah L.; Chaushev, Alexander; Chazelas, Bruno; Csizmadia, Szilard; Erikson, Anders; Faedi, Francesca; Foxell, Emma; Gänsicke, Boris T.; Goad, Michael R.; Grange, Andrew; Günther, Maximilian N.; Hodgkin, Simon T.; Jackman, James; Jenkins, James S.; Lambert, Gregory; Louden, Tom; Metrailler, Lionel; Moyano, Maximiliano; Pollacco, Don; Poppenhaeger, Katja; Queloz, Didier; Raddi, Roberto; Rauer, Heike; Raynard, Liam; Smith, Alexis M. S.; Soto, Maritza; Thompson, Andrew P. G.; Titz-Weider, Ruth; Udry, Stéphane; Walker, Simon R.; Watson, Christopher A.; West, Richard G.; Wheatley, Peter J.
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 475, Issue 4, p.4467-4475
Copyright ©
2017 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

2018 March

Authors:
Cloutier, R.; Astudillo-Defru, N.; Doyon, R.; Bonfils, X.; Almenara, J. -M.; Bouchy, F.; Delfosse, X.; Forveille, T.; Lovis, C.; Mayor, M.; Menou, K.; Murgas, F.; Pepe, F.; Santos, N. C.; Udry, S.; Wünsche, A.
Publication:
Astronomy & Astrophysics, Volume 621, id.A49, 18 pp.

2018 December

Authors:
Obrzud, E.; Rainer, M.; Harutyunyan, A.; Chazelas, B.; Cecconi, M.; Ghedina, A.; Molinari, E.; Kundermann, S.; Lecomte, S.; Pepe, F.; Wildi, F.; Bouchy, F.; Herr, T.
Publication:
Optics Express, vol. 26, issue 26, p. 34830

2018 November

Authors:
Carmona, A.; Donati, J. -F.; Moutou, C.; Artigau, E.; Baratchart, S.; Challita, Z.; Bouchy, F.; Delfosse, X.
Publication:
Proceedings of the SPIE, Volume 10702, id. 1070215 7 pp. (2018).
Copyright ©
(c) 2018: SPIE. Downloading of the abstract is permitted for personal use only.

2018 June

Authors:
Cegla, H. M.; Watson, C. A.; Shelyag, S.; Chaplin, W. J.; Davies, G. R.; Mathioudakis, M.; Palumbo, M. L., III; Saar, S. H.; Haywood, R. D.
Publication:
The Astrophysical Journal, Volume 866, Issue 1, article id. 55, 14 pp. (2018).

2018 September

Authors:
Bourrier, V.; Dumusque, X.; Dorn, C.; Henry, G. W.; Astudillo-Defru, N.; Rey, J.; Benneke, B.; Hébrard, G.; Lovis, C.; Demory, B. O.; Moutou, C.; Ehrenreich, D.
Publication:
Astronomy & Astrophysics, Volume 619, id.A1, 18 pp.

2018 September

Authors:
Malavolta, Luca; Mayo, Andrew W.; Louden, Tom; Rajpaul, Vinesh M.; Bonomo, Aldo S.; Buchhave, Lars A.; Kreidberg, Laura; Kristiansen, Martti H.; Lopez-Morales, Mercedes; Mortier, Annelies; Vanderburg, Andrew; Coffinet, Adrien; Ehrenreich, David; Lovis, Christophe; Bouchy, Francois; Charbonneau, David; Ciardi, David R.; Collier Cameron, Andrew; Cosentino, Rosario; Crossfield, Ian J. M.; Damasso, Mario; Dressing, Courtney D.; Dumusque, Xavier; Everett, Mark E.; Figueira, Pedro; Fiorenzano, Aldo F. M.; Gonzales, Erica J.; Haywood, Raphaëlle D.; Harutyunyan, Avet; Hirsch, Lea; Howell, Steve B.; Johnson, John Asher; Latham, David W.; Lopez, Eric; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Nascimbeni, Valerio; Pepe, Francesco; Phillips, David F.; Piotto, Giampaolo; Rice, Ken; Sasselov, Dimitar; Ségransan, Damien; Sozzetti, Alessandro; Udry, Stéphane; Watson, Chris
Publication:
The Astronomical Journal, Volume 155, Issue 3, article id. 107, 13 pp. (2018).

2018 February

Authors:
Bayliss, D.; Hartman, J. D.; Zhou, G.; Bakos, G. Á.; Vanderburg, A.; Bento, J.; Mancini, L.; Ciceri, S.; Brahm, R.; Jordán, A.; Espinoza, N.; Rabus, M.; Tan, T. G.; Penev, K.; Bhatti, W.; de Val-Borro, M.; Suc, V.; Csubry, Z.; Henning, Th.; Sarkis, P.; Lázár, J.; Papp, I.; Sári, P.
Publication:
The Astronomical Journal, Volume 155, Issue 3, article id. 119, 14 pp. (2018).

2018 February

Authors:
Bonfils, X.; Almenara, J. -M.; Cloutier, R.; Wünsche, A.; Astudillo-Defru, N.; Berta-Thompson, Z.; Bouchy, F.; Charbonneau, D.; Delfosse, X.; Díaz, R. F.; Dittmann, J.; Doyon, R.; Forveille, T.; Irwin, J.; Lovis, C.; Mayor, M.; Menou, K.; Murgas, F.; Newton, E.; Pepe, F.; Santos, N. C.; Udry, S.
Publication:
Astronomy & Astrophysics, Volume 618, id.A142, 12 pp.

2018 September

Authors:
Demangeon, O. D. S.; Faedi, F.; Hébrard, G.; Brown, D. J. A.; Barros, S. C. C.; Doyle, A. P.; Maxted, P. F. L.; Cameron, A. Collier; Hay, K. L.; Alikakos, J.; Anderson, D. R.; Armstrong, D. J.; Boumis, P.; Bonomo, A. S.; Bouchy, F.; Delrez, L.; Gillon, M.; Haswell, C. A.; Hellier, C.; Jehin, E.; Kiefer, F.; Lam, K. W. F.; Lendl, M.; Mancini, L.; McCormac, J.; Norton, A. J.; Osborn, H. P.; Palle, E.; Pepe, F.; Pollacco, D. L.; Prieto-Arranz, J.; Queloz, D.; Ségransan, D.; Smalley, B.; Triaud, A. H. M. J.; Udry, S.; West, R.; Wheatley, P. J.
Publication:
Astronomy & Astrophysics, Volume 610, id.A63, 19 pp.

2018 February

Authors:
Wakeford, H. R.; Lewis, N. K.; Fowler, J.; Bruno, G.; Wilson, T. J.; Moran, S. E.; Valenti, J.; Batalha, N. E.; Filippazzo, J.; Bourrier, V.; Hörst, S. M.; Lederer, S. M.; de Wit, J.
Publication:
The Astronomical Journal, Volume 157, Issue 1, article id. 11, 14 pp. (2019).

2018 December

Authors:
Suárez Mascareño, A.; González Hernández, J. I.; Rebolo, R.; Velasco, S.; Toledo-Padrón, B.; Udry, S.; Motalebi, F.; Ségrasan, D.; Wyttenbach, A.; Mayor, M.; Pepe, F.; Lovis, C.; Santos, N. C.; Figueira, P.; Esposito, M.
Publication:
Astronomy & Astrophysics, Volume 612, id.A41, 16 pp.

2018 March

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